Hello Peter
The holes for the speakers were open in the metal panel of the door. They were covered with a green sheet.
There were no holes in the door cards.
I did not know the correct shape of the holes so I drilled them properly.
I took the bezel from Felix (SA).
These had several broken pins for mounting. Of course, Felix explained to me in advance that several pins were missing.
I rebuilt the broken pins and installed them in the panel.
Do these pins break easily?
The Italians used silicon glue to attach them.
Hi
I do not have speakers in my doors, so did not need to modify the door cards, but I managed to source some of the silver coloured bezels new old stock with good pins. I had assumed they were moulded complete with pins, but may be wrong. The ones I used were the later ones with the holes already included (see photo), but did acquire along the way various of them, some had the holes drilled as you have done. These bezels tend to be hard to come by, but I do see the odd seller in in Italy who have them for sale.
Do they break easily, not that easily, the problem is how much force is used to remove the retaining star washer off them which tends to strain the plastic.
Peter